A copper atom has a diameter of 127.8 pm (10^ -12 m=1 pm). What is the length in meters of a line containing 1.000 mols of copper atoms? Thanks!
2007-10-03 19:06:07 · 3 answers · asked by Anita 5 in Science & Mathematics ➔ Chemistry
In one mole of any metal, you have 6.023 x 10^23 indivisible units or atoms. So assuming there is no repulsion or attraction between two atoms, you will have to multiply 6.023 x 10^23 with 10^ -12 m ... please do the calculation yourself.
2007-10-03 19:11:17 · answer #1 · answered by Anonymous · 0⤊ 0⤋
127.8 pm = 1.278 x 10^-10 m
1.278x 10^-10 m = 1 atom
1.000 mol = 6.02x10^23 atoms
6.02x10^23 atoms x 1.278x10^-10 m / atom = 7.364x10^13m
2007-10-04 02:11:59 · answer #2 · answered by lhvinny 7 · 0⤊ 0⤋
According to Avogaro any one mole of a substance contains six point zero two three times ten raised to power 23.
Thereofte multiply that by th formula you have and voila you have it.
2007-10-04 05:14:25 · answer #3 · answered by stellah b 1 · 0⤊ 0⤋